/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package studio.raptor.ddal.core.engine;

/**
 * kernel of process engine.
 *
 * @author Sam
 * @since 3.0
 */
public abstract class Processor {

    private final ProcessEngine processEngine;

    protected Processor(ProcessEngine engine) {
      this.processEngine = engine;
    }

    protected ProcessEngine getProcessEngine() {
        return processEngine;
    }

    protected ProcessContext getProcessContext() {
      return this.processEngine.getProcessContext();
    }

    /**
     * Get working mode of processor.
     *
     * @return working mode of processor
     * @see WorkingMode
     */
    public abstract WorkingMode getWorkingMode();


    /**
     * Processor working mode.
     */
    public enum WorkingMode {
        JDBC(1, "JDBC"), PROXY(2, "PROXY");

        int modeCode;
        String modeName;

        WorkingMode(int code, String name) {
            this.modeCode = code;
            this.modeName = name;
        }

        @Override
        public String toString() {
            return "WorkingMode{" + "modeCode=" + modeCode + ", modeName='" + modeName + '\'' + "} " + super.toString();
        }
    }
}
